SyntaxError

The SyntaxError object represents an error when trying to interpret syntactically invalid code. It is thrown when the JavaScript engine encounters tokens or token order that does not conform to the syntax of the language when parsing code.

Constructor

SyntaxError(): Creates a new SyntaxError object.

Instance properties

SyntaxError.prototype.message: Error message. Inherited from Error.
SyntaxError.prototype.fileName: Path to file that raised this error. Inherited from Error.
SyntaxError.prototype.lineNumber: Line number in file that raised this error. Inherited from Error.
SyntaxError.prototype.columnNumber: Column number in line that raised this error. Inherited from Error.
SyntaxError.prototype.stack: Stack trace. Inherited from Error.

Examples

Catching a SyntaxError

try {
  eval('hoo bar');
} catch (e) {
  console.error(e instanceof SyntaxError);
  console.error(e.message);
  console.error(e.name);
  console.error(e.fileName);
  console.error(e.lineNumber);
  console.error(e.columnNumber);
  console.error(e.stack);
}

Creating a SyntaxError

try {
  throw new SyntaxError('Hello', 'someFile.js', 10);
} catch (e) {
  console.error(e instanceof SyntaxError); // true
  console.error(e.message);                // Hello
  console.error(e.name);                   // SyntaxError
  console.error(e.fileName);               // someFile.js
  console.error(e.lineNumber);             // 10
  console.error(e.columnNumber);           // 0
  console.error(e.stack);                  // @debugger eval code:3:9
}

Specifications

Specification
ECMAScript Language Specification # sec-native-error-types-used-in-this-standard-syntaxerror

Browser compatibility

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